® AndroidTM App Performance & Trend Report Q1 2017 | by Avast® Contents

Executive Summary...... 2

A Insights and Analysis...... 3 New Resource Drainers...... 4-5 Top 50 Most Installed Android Apps...... 6 Most Popular Devices Q1 2017...... 7 The Usual Suspects...... 8-9 . B Key Findings...... 10 World’s Greediest Mobile Apps...... 11-12 Top Ten Battery Draining Apps...... 13-14 Top Ten Storage Hogging Apps...... 15-16 Top Data Traffic Hogging Apps...... 17-18 Mobile Gaming - What Gamers Should Know...... 19 . C Addressing the Issues...... 20 Contact Information ...... 21

D Appendices: App Resource Consumption Analysis...... 22 United States...... 23-25 United Kingdom...... 26-28

TM Avast ® Android App Performance & Trend Report Q1 2017 1 Executive Summary

The Avast Android App Performance & Trend Report Methodology Q1 2017 reveals the top performance-draining apps for COVERING Android devices, based on battery, storage and data The app data included use, and the key recent trends in Android app use. in this report covers the time period of January through to March 2017.

DATA FROM OVER Q1The Avast Android App Performance & Trend Report was gathered from a sample of aggregated and anonymized data from more than three million Android users around the globe for performance data (battery life, storage and tra c) 3,000,000ANDROID USERS and more than 50 million users for general app statistics.

APPS WITH This report only includes Play applications where Avast observed a USAGE minimum sample size of 50KINCIDENCES 50,000 usage incidences.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 2 Insights & Analysis A

<< Contents 3 A Insights and Analysis New Resource Drainers in 2017

Google Play Music 1 Google Talkback 2 The New Hidden Resource Hog Drainer on the Dancefloor

Talkback is a newcomer in the The built-in Music app list of most performance-draining seems to rapidly drain battery and applications. The accessibility app is in the 7th spot of our top 10 most helps blind or vision-impaired users resource-draining apps. It seems that by offering them text-to-speed options, vibration ad blockers are a common cause for battery drain feedback and more. Unfortunately, the app seems with the music app. to drain power even if it isn’t actively being used. SHAREit There are some 3rd party apps toggle Talkback on, 3 Add Sharing is Draining with this Smartphone Killer so that it launches automatically once you reboot to the whitelist of your ad your smartphone – and it stays on. blocker. This can sometimes This free app by Lenovo allows you to help eliminate the issue. share over Wi-Fi from one device to another and works with PCs (Windows), Android and iOS devices. It’s a high-ranking app To fix this, go to your loved by its users, but given its Wi-Fi usage, it Settings, findAccessibility appears at the No 4 spot on our most performance- and Talkback. Flip the switch intense apps list. to Off or if it’s already off, flip itOn and Off again.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 4 A Insights and Analysis New Resource Drainers in 2017

4 Google Doc 5 Samsung Media Hub Text Editor Causes Writer’s Block The Ghost of Smartphones Past

This straightforward text editor is now This app was actually discontinued the second most draining app on our in 2014 yet is showing up as a list. Our testers found that the app resource drainer 3 years later. This impacted the battery more when you’re may be caused by older Galaxy accessing regularly. phones from 2013 and 2014 still running it actively. If it’s on your device but you’re not using it, you can remove it and use other current Uninstalling and reinstalling media stores and players instead. Google Drive and can help with this issue.

6 Piano Tiles 2 Musical Mischief Maker

The rhythm and timing based game Piano Tiles 2 is one of the top resource draining apps in the games category. In our own tests using a Galaxy S6, it drained the battery in less than 3 ½ hours of consistent usage.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 5 A Insights and Analysis Top 50 Most Installed Android Apps

1 Facebook 11 Twitter 21 SHAREit 31 LINE: Free Calls & 41 PicsArt Studio

2 WhatsApp Messenger 12 Snapchat 22 Shazam 32 Firefox 42 Bitmoji

3 Chrome Browser (Google) 13 Spotify 23 Candy Crush Saga 33 Subway Surfers 43 Telegram

4 Messenger 14 Adobe Acrobat Reader 24 Clean Master 34 AliExpress Shopping App 44 Photogrid

5 Instagram 15 Uber 25 Microsoft Outlook 35 Clash Royale 45 UC Browser

6 Dropbox 16 Pinterest 26 Yahoo Mail 36 Pokémon GO 46 Super Mario Run

7 Skype 17 Netflix 27 ZEDGE™ 37 ES File Explorer File Manager 47 Opera Mini Browser

8 Microsoft Word 18 AVG Cleaner 28 - GPS, Maps & Traffic 38 Wish 48 Piano Tiles 2

9 Instant Apps 19 29 imo free video calls and chat 39 Truecaller 49 My Talking Tom

10 20 Viber Messenger 30 Facebook Lite 40 Clash of Clans 50 8 Ball Pool

7 Google Instant Apps: Storming the charts

Not a lot has changed in the list of most installed apps on Android since AliExpress is the other newbie on our list – the app allows you to shop across multiple the last report, except for Google Instant Apps, which is installed on 3 online stores worldwide and has entered the list of most installed applications in Q1 2017. million of the 50 million devices surveyed. It’s Google’s technology to Both Microsoft Word and Microsoft Outlook made it into the list of top 50 apps help test drive apps without actually installing them, as only a portion worldwide, too, and are now the most used text editing and email apps aside of the app is being downloaded and not permanently stored. from Google’s own pre-installed apps (which we don’t count here).

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 6 A Insights and Analysis Most Popular Devices: Q1 2017

8 Most popular devices in Q1 2017: 1 Samsung Galaxy S5 6 Samsung S7 Duos Samsung S6 and S7 are gaining marketshare Duos 4G LTE-A TD-LTE Google Android 4.4.4 Google Android 6.0.1 (Chinese) The once popular Samsung Galaxy S3 noticeably lost market share in Q1 - only about 750,000 active devices Sony Xperia among our total user base remain, in comparison to 2 Sony Xperia 7 Z2 LTE Z3 Compact LTE nearly 2 million a year ago. Google Android 4.4.2 Google Android 4.4.4 The new star in the Samsung line-up is the S7, which started showing up on our Top 10 in Q4 2016 and is now the fifth most popular smartphone in the Android 3 Samsung Galaxy 8 Sony Xperia Z3 S6 LTE-A LTE-A Specs world. Google Android 5.0.2 Google Android 4.4.4 Among our user base, Sony lost approximately 30% market share between Q1 2016 and Q1 2017. 4 Samsung Galaxy 9 Sony Xperia M4 S3 Neo Specs Aqua Dual LTE Google Android 4.3 Google Android 5.0

5 Samsung S7 Edge 10 Samsung Galaxy S4 XLTE Black Edition 32GB Google Android 6.0.1 Google Android 4.2.2

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 7 A Insights and Analysis The Usual Suspects: Facebook, AllShare Cast & more

Since we first produced this report, a number of resource-eating apps have consistently appeared on our lists with the following seven being the most common:

1 AllShare Cast Dongle Software Update 2 Samsung WatchOn

This is a service responsible for updating WatchOn, Samsung’s pre-installed remote the AllShare Cast Dongle software which app (also called ‘Peel’ on newer devices) allows users to stream content from their can switch channels on your smart TV or help phones, such as videos or songs, to a compatible you find a program. It drains battery so if you are low on smart TV. A few years ago, it came as a pre-install on power, it’s helpful to turn it off. some smartphones, such as the Samsung Galaxy S4. However, even when not in use, the app continues to drain resources, so if you want to stop it, check your list Samsung Push Service of most draining apps (see AVG Cleaner for Android) or 3 find the AllShare Cast app on your phone and turn off Also a pre-installed service, this quick sharing. allows Samsung-only apps like ChatON, AllShare or Samsung Wallet to display notifications. It’s helpful to know that this app also drains phone battery.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 8 4 Facebook & Facebook Messenger 5 Samsung ChatOn

No surprises here, both Facebook and its This app has been discontinued and messenger app always rank among the top replaced by the Samsung Knox Message drainers on Android phones. Accessing BETA, except in the US. Again, it is a heavy Facebook through your browser will eliminate the resource drainer so if you are not using it, you should constant background drain of the app, although remove it from your device. you’ll be missing out on notifications and the comfort of the app.

6 Samsung Knox / Security Policy Update 7 Mobeam Beep’nGo

A security system running on a wide variety The Beep’nGo app allows you to scan of Android smartphones. It was introduced and store all your plastic cards that have a a few years ago and helps provide a secure barcode, eliminating the need to carry your environment for enterprise applications on phones, plastic cards with you. This top battery draining app was allowing “BYOD” (Bring Your Own Device). It’s designed discontinued in 2017. to prevent malicious apps from impacting your company’s apps. The update app, however, draws more battery life than it really should.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 9 Key Findings World’s Greediest B Mobile Apps

<< Contents 10 B Key Findings World’s Greediest Mobile Apps

In this section, we reveal which apps had the most overall impact on mobile devices, draining battery life, storage and data plan.

TOP 10 PERFORMANCE-DRAINING APPS THAT RUN AT START-UP

HIGHEST Apps that run automatically in the background Samsung AllShare IMPACT Samsung Electronics Co., Ltd. Google Inc. 1 6 In this quarter, the list of the most resource-heavy apps that run ChatON Voice & Video Chat in the background is dominated by built-in or pre-installed apps. Samsung Electronics Co., Ltd. Google Inc. 2 7 Notably, these include Samsung’s AllShare, ChatON or Push Services apps alongside Google’s Plus, Hangout and Maps apps. Samsung Push Service Google Plus Samsung Electronics Co., Ltd. Google Inc. Separately, ChatON even showed up twice on our list: the earlier 3 8 version which came pre-installed on some older Galaxy phones and its successor ChatON Voice & Videochat. Google TalkBack ChatON 4 Google Inc. 9 Samsung Electronics Co., Ltd. Google Play Music Hangouts Google Inc. Google Inc. Stop, sleep or uninstall apps that you 5 10 don’t need. Find alternatives to the CATEGORY: Social Communication Tools Newspaper & Magazines Music & Audio ones mentioned above if they show up on your lists of most draining apps.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 11 B Key Findings World’s Greediest Mobile Apps

TOP 10 PERFORMANCE-DRAINING APPS RUN BY USERS

HIGHEST Apps activated by the user that run in the foreground: Samsung WatchON IMPACT Flipboard Samsung Media Solution Center Flipboard 1 6 For the first time in months, two previous drainersSpotify and , have dropped out of their top 10 positions on the Google Docs Google Text-to-Speech Snapchat Google Inc. Google Inc. most performance draining apps list. As we’ve mentioned above, 2 7 Google Docs, an app that’s as simple as editing text is now the Samsung Media Hub Clean Master number two drainer on your phone, so using a different editor 3 Samsung Electronics Co,. Ltd. 8 tool, such as Microsoft Word, could be an alternative. SHAREit LINE: Free Calls & Messages 4 SHAREit Technologies Co. Ltd 9 LINE Corporation Video Editor Adobe Acrobat Reader 5 Samsung Electronics MP Lab. 10Adobe CATEGORY: Entertainment Communication Productivity Newspaper & Magazines Tools

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 12 B Key Findings Top Ten Battery Draining Apps

TOP 10 BATTERY DRAINERS THAT RUN AT START-UP

HIGHEST Aside from the pre-installed apps we’ve already Samsung AllShare IMPACT WhatsApp Messenger Samsung Electronics Co,. Ltd. WhatsApp Inc. covered, Facebook, WhatsApp and WeChat are 1 6 also the top drainers in that category. In the case Samsung Security Policy Updates Facebook of Facebook and its messaging app, you can still Facebook 2 Samsung OTA Software Update 7 uninstall and use the web-only version to help save resources. Beaming Service for Samsung WeChat 3 Mobeam Inc. 8 WeChat ChatON Voice & Video Chat AppLock 4 Samsung Electronics Co., Ltd. 9 DoMobile Lab Google Maps DU Battery Saver 5 Google Inc. 10DU APPS STUDIO CATEGORY: Social Productivity Tools Communication

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 13 B Key Findings Top Ten Battery Draining Apps

TOP 10 BATTERY-DRAINERS RUN BY USERS

HIGHEST Samsung’s built-in video editor has now become the second Samsung WatchON IMPACT Clean Master 1 Samsung Media Solution Center 6 Cheetah Mobile most battery draining app. It requires intense processing (CPU) and graphical (GPU) resources from your phone for editing Video Editor LINE: Free Calls & Messages and adding effects to your videos. 2 Samsung Electronics MP Lab. 7 LINE Corporation No surprise here: Spotify, Netflix and Snapchat continue to Netflix Microsoft Outlook Netflix, Inc. Microsoft Corporation be heavy drainers, as they’re using more resources than your 3 8 browser or mail app. Spotify Music BBC News 4 Spotify Ltd. 9 BBC News Snapchat ES File Explorer File Manager 5 Snap Inc. 10ES Global CATEGORY: Social Entertainment Productivity Tools Music & Audio Communication Newspaper & Magazines

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 14 B Key Findings Top Ten Storage Hogging Apps

TOP 10 STORAGE-EATERS THAT RUN AT START UP

HIGHEST Once at the top of the list of most resource draining and Facebook IMPACT Quick Search Box Facebook 6 Google Inc. (particularly) storage eating apps, as outlined in our last App 1 Report, is no longer on this list. Instead, we are seeing musical.ly Instagram Google Maps a return of classic apps that use up your phone’s internal memory, Instagram Google Inc. 2 7 such as Facebook, Instagram, and Kindle, all of which store local cache files, photos or books. Note that these apps run Amazon Kindle Amazon Mobile LLC Google Inc. automatically at startup, so you might not even be aware of their 3 8 excessive usage. Facebook Messenger Firefox Browser fast & private Facebook Mozilla Google’s Quick Search Box appears to keep larger caches than 4 9 Maps or Chrome and our testing indicated that offline searches CosmoSia - Free Video Call & Chat and the cache used by Google’s Quick Search box tends to grow ACCESS Co., Ltd. Tango 5 10 excessively. Only uninstalling it or using a cache cleaner (such as CATEGORY: Social Communication Tools Books & Reference AVG Cleaner for Android ) helps keep usage down.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 15 B Key Findings Top Ten Storage Hogging Apps

TOP 10 STORAGE-EATERS RUN BY USERS

HIGHEST Spotify is back on the list of top storage eaters that are being Spotify Music IMPACT PicsArt Photo Studio & Collage Spotify Ltd. PicsArt actively run by users. You could clean down the music or playlists 1 6 you aren’t listening to any more to help manage this. Apps we saw Snapchat Amazon Shopping in our previous report, such as the Jehovah’s Witnesses JW Library Snap Inc. Amazon Mobile LLC 2 7 App and comic-book reader Comico, are no longer on the list. LINE: Free Calls & Messages BBC News LINE Corporation BBC News New on the list is Photo Grid, an fun effect-driven picture 3 8 editor that you can use to add effects to your selfies or photos to absurd limits. Remember to clean up photos if you don’t need Video Editor Clean Master 4 Samsung Electronics MP Lab. 9 Cheetah Mobile them anymore. SoundCloud - Music & Audio Photo Grid 5 SoundCloud 10Cheetah Mobile CATEGORY: Music & Audio Communication Social Photography Newspaper & Magazines Tools Shopping

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 16 B Key Findings Top Data Traffic Hogging Apps

TOP DATA TRAFFIC HOGS THAT RUN AT START-UP

HIGHEST Some apps consume your mobile data volume even if you’re Facebook IMPACT WhatsApp Messenger Facebook 6 WhatsApp Inc. not actively using them. The latest top 10 list shows Facebook 1 and Instagram, followed by Yahoo! JAPAN are the three Instagram Google Chrome biggest users of data; the Weather Channel also appears Instagram Google Inc. 2 7 once again. Consider turning off these apps or removing their background activity to help manage the use of your data plan Yahoo! JAPAN DU Battery Saver when you are not connected to Wi-Fi. 3 Yahoo Japan Corp. 8 DU APPS STUDIO Firefox Browser fast & private Facebook Lite 4 Mozilla 9 Facebook The Weather Channel Google Play Store 5 The Weather Channel 10Google Inc. CATEGORY: Social Tools Communication Newspaper & Magazines Weather Music & Audio

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 17 B Key Findings Top Data Traffic Hogging Apps

TOP 10 DATA TRAFFIC HOGS RUN BY USERS

HIGHEST Netflix is still at the top of the list of apps our users actively Netflix IMPACT Microsoft Outlook Netflix, Inc. Microsoft Corporation ran this quarter, followed by Spotify and Snapchat. Amazon 1 6 App for Android tablets is also heavy on traffic so using Spotify Music Clean Master Wi-Fi rather than your data plan is advised. 2 Spotify Ltd. 7 Cheetah Mobile Snapchat Samsung WatchON 3 Snap Inc. 8 Samsung Media Solution Center BBC News Amazon for Tablets 4 BBC News 9 Amazon Mobile LLC LINE: Free Calls & Messages PicsArt Photo Studio & Collage 5 LINE Corporation 10PicsArt CATEGORY: Communication Entertainment Productivity Newspaper & Magazines Photography Music & Audio Shopping Social Tools

Movie and TV enthusiasts can use the offline option to download shows or movies at home and take them with them on the go.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 18 B Key Findings Mobile Gaming - What Gamers Should Know

TOP PERFORMANCE-DRAINING APPS - GAMES

HIGHEST Simple 2D games like Candy Crush Saga or Soda Saga Candy Crush Saga IMPACT Subway Surfers King Kiloo continue to rank as highly on this list as most resource-eating 1 6 games on Android. This list has barely changed since we Candy Crush Soda Saga Hill Climb Racing first launched our App Report series almost 3 years ago. Two King Fingersoft 2 7 notable exceptions are Piano Tiles 2 and Hill Climb Racing, which drained the battery of our test device, a Samsung Piano Tiles 2 Clash Royale Cheetah Games Supercell Galaxy, in less than 3 ½ hours, despite the fact that the 3 8 graphics are quite simple. Clash of Clans Farm Heroes Saga 4 Supercell 9King My Talking Tom 5 Outfit7 CATEGORY: Strategy Casual Arcade Simulation

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 19 C Addressing the Issues We’ve put together a comprehensive guide 7 Ways to Boost Battery Life, Free Up for all consumers and Storage and Reduce Mobile Data Traffic businesses looking to address the issues outlined in this report. Here are 7 easy steps to help you boost battery life, Click here to download stop storage eaters and save mobile traffic. the full PDF guide.

Limit notifications to save battery Free up space Turn down brightness life, performance and mobile data Apps collect clutter over time. Use AVG Cleaner for Phone notifications are one of the most useful If you’re not in bright sunlight, we recommend Android, an Avast product, to get rid of temporary files. mobile inventions, giving you information turning down the brightness level of your phone’s you need to know about new appointments display. Why? On many of today’s big phones and Reduce data traffic or messages at a glance. But not all of them tablets, the display is responsible for up to 80% of the are useful, and they can consume resources. entire power consumption. Turn off background data transfers or any offline reading features within your app if you don’t want it to consume Limit apps battery and performance drain Get rid of performance-sapping apps mobile traffic. Reduce background features, refresh intervals, location Our AVG Cleaner for Android app analyzes the usage or in-app notifications. Turn off Wi-Fi, Bluetooth and GPS top battery, storage, and traffic-hogging apps on your device. If you don’t need one of these apps, To save more battery life, turn off all the hardware you can easily uninstall it and look for more features you don’t need at any given moment. resource-friendly alternatives.

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 20 More information and resources on how to get the most out of your connected devices at: blog.avast.com. Or visit our websites for more details about our performance products: avast.com/battery-saver and avg.com/performance

Avast Software (www.avast.com), the global most advanced threat detection networks in leader in digital security products for consumers the world. Avast digital security products for and businesses, protects over 400 million Mobile, PC or Mac are top-ranked and certified people online. Avast offers products under the by VB100, AV-Comparatives, AV-Test, OPSWAT, Avast and AVG brands, that protect people ICSA Labs, West Coast Labs and others. from threats on the internet with one of the

Contact Information C Avast PR [email protected] Sandro Villinger - Consumer Marketing & Product Strategy [email protected]

All other trademarks are the property of their respective owners. Google® is a trademark of Google Inc., registered in the United States and other countries Google Chrome™ and Android™ are trademarks of Google Inc., registered in the United States and other countries.Facebook® is a trademark of Facebook, Inc., registered in the United States and in other countries. Twitter® is a trademark of Twitter Inc., registered in the United States and in other countries. Amazon™ is a trademark of Amazon.com, Inc registered in the United States and other countries. Apple® is a trademark of Apple Inc., registered in the United States and other countries. << Contents 21 Appendix App Resource Consumption Analysis D In this section, you can find the app resource consumption analysis for the United States and the United Kingdom. We used the same methods to calculate the rankings as before, but this time only took into account performance data of users from these specific countries.

<< Contents 22 D Appendix USA

TOP PERFORMANCE DRAINING APPS - EXCLUDING GAMES TOP BATTERY DRAINERS THAT RUN AT START UP

HIGHEST HIGHEST Samsung AllShare IMPACT Google play Music Samsung AllShare IMPACT Facebook 1 Samsung Electronics Co., Ltd. 6 Google Inc. 1 Samsung Electronics Co., Ltd. 6 Facebook Samsung Security Samsung WatchON Google Play Newsstand WhatsApp Messenger Samsung Media Solution Center Google Inc. Policy Updates WhatsApp Inc. 2 7 2 Samsung OTA Software Update 7 ChatOn Voice & Video Chat Beaming Service for Samsung Beaming Service for Samsung WeChat 3 Samsung Electronics Co., Ltd. 8 Mobeam Inc. 3 Mobeam Inc. 8 WeChat Tencent Samsung Security Google TalkBack Chat On Voice & Video Chat AppLock Policy Updates DoMobile Lab 4 Google Inc. 9 Samsung OTA Software Update 4 Samsung Electronics Co., Ltd. 9 Samsung Push Service Samsung Media Hub Google Maps DU Battery Saver 5 Samsung Electronics Co. Ltd. 10Samsung Electronics Co,. Ltd. 5 Google Inc. 10DU APPS STUDIO CATEGORY: Social Communication Entertainment Tools Productivity Music & Audio Newspaper & Magazines CATEGORY: Communication Productivity Tools Social

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 23 D Appendix USA

TOP BATTERY DRAINERS RUN BY USERS TOP 10 STORAGE EATERS - EXCLUDING GAMES

HIGHEST HIGHEST Samsung WatchON IMPACT Snapchat Facebook IMPACT LINE: Free Calls & Messages 1 Samsung Media Solution Center 6Snap Inc. 1 Facebook 6 LINE Corporstion Video Editor LINE: Free Calls & Messages Spotify Music Box 2 Samsung Electronics MP Lab. 7 LINE Corporation 2 Spotify Ltd. 7 Google Inc. Netflix Microsoft Outlook Snapchat Facebook Messenger 3 Netflix, Inc. 8 Microsoft Corporation 3 Snap Inc. 8 Facebook Spotify Music Photo Grid Instagram Video Editor 4 Spotify Ltd. 9Cheetah Mobile 4 Instagram 9 Samsung Electronics MP Lab. Clean Master ES File Explorer File Manager Amazon Kindle Google Chrome 5 Cheetah Mobile 10ES Global 5 Amazon Mobile LLC 10Google Inc. CATEGORY: Social Tools Productivity Entertainment Photography Communication CATEGORY: Communication Social Books & Reference Tools Music & Audio

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 24 D Appendix USA

TOP 10 DATA TRAFFIC HOGS - EXCLUDING GAMES

HIGHEST Netflix IMPACT Firefox Browser fast & private 1 Netflix, Inc. 6 Mozilla Facebook Mobile Security & Antivirus 2 Facebook 7 Avast Software Spotify Music The Weather Channel 3 Spotify Ltd. 8 The Weather Channel Instagram Google Chrome 4 Instagram 9 Google inc. Snapchat Google Maps 5 Snap Inc. 10Google Inc. CATEGORY: Social Entertainment Weather Tools Communication Music & Audio

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 25 D Appendix UNITED KINGDOM

TOP PERFORMANCE DRAINING APPS - EXCLUDING GAMES TOP BATTERY DRAINERS THAT RUN AT START UP

HIGHEST HIGHEST Samsung AllShare IMPACT ChatON Voice & Video Chat Samsung Security IMPACT Facebook Samsung Electronics Co., Ltd. Samsung Electronics Co., Ltd. Policy Update Facebook 1 6 1 Samsung Electronics Co., Ltd. 6 Samsung WatchON Google Play Newsstand Samsung AllShare WhatsApp Messenger 2 Samsung Media Solution Center 7 Google Inc. 2 Samsung Electronics Co., Ltd. 7 WhatsApp Inc. Samsung Push Service Google Maps Beaming Service for Samsung WeChat 3 Samsung Electronics Co., Ltd. 8 Google Inc. 3 Mobeam Inc. 8 WeChat Tencent Google TalkBack ChatON ChatON Voice & Video Chat Facebook Messenger 4 Google Inc. 9 Samsung Electronics Co., Ltd. 4 Samsung Electronics Co., Ltd. 9 Facebook Google Play Music Google+ Google Maps AppLock 5 Google Inc. 10Google Inc. 5 Google Inc. 10DoMobile Lab CATEGORY: Social Communication Tools Newspaper & Magazines Entertainment Music & Audio CATEGORY: Social Communication Tools Productivity

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 26 D Appendix UNITED KINGDOM

TOP 10 BATTERY DRAINERS RUN BY USERS TOP STORAGE EATERS - EXCLUDING GAMES

HIGHEST HIGHEST Samsung WatchON IMPACT Microsoft Outlook Facebook IMPACT LINE: Free Calls & Messages 1 Samsung Media Solution Center 6 Microsoft Corporation 1 Facebook 6LINE Corporation Video Editor Clean Master Spotify Music Video Editor 2 Samsung Electronics MP Lab. 7 Cheetah Mobile 2 Spotify Ltd. 7 Samsung Electronics MP Lab. Netflix LINE: Free Calls & Messages Snapchat Facebook Messenger 3 Netflix, Inc. 8 LINE Corporation 3 Snap Inc. 8 Facebook Spotify Music BBC News Instagram Google Search Box 4 Spotify Ltd. 9BBC News 4 Instagram 9 Google Inc. Snapchat Photo Grid Amazon Kindle Google Chrome 5 Snap Inc. 10Cheetah Mobile 5 Amazon Mobile LLC 10Google Inc. CATEGORY: Social Tools Entertainment Newspaper & Magazines Photography Productivity Communication CATEGORY: Social Music & Audio Communication Books & Reference Tools

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 27 D Appendix UNITED KINGDOM

TOP DATA TRAFFIC HOGS - EXCLUDING GAMES

HIGHEST Netflix IMPACT Snapchat 1 Netflix, Inc. 6 Snapchat Inc. Facebook Antivirus & Security 2 Facebook 7 Avast Software Spotify Music The Weather Channel 3 Spotify Ltd. 8 The Weather Channel Instagram Google Maps 4 Instagram 9Google Inc. Firefox Browser fast & private Google Chrome 5 Mozilla 10Google Inc. CATEGORY: Social Music & Audio Communication Tools Weather Entertainment

® TM << Contents Avast Android App Performance & Trend Report Q1 2017 28

Avast® AndroidTM App Performance & Trend Report Q1 2017 | by Avast® Software